/* ===== Top Banner ===== */
#banner {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.banner-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  height: var(--banner-height);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 8px;
}

/* Brand (Logo + Title) */
.banner-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  margin-right: 12px;
}

.logo {
  width: 36px;
  height: 36px;
}

.site-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}

/* Register Button */
.btn-register {
  background: var(--color-accent);
  color: var(--color-white);
  padding: 6px 20px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: background var(--transition);
  flex-shrink: 0;
}

.btn-register:hover {
  background: var(--color-accent-hover);
}

/* ===== Main Navigation ===== */
#main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
}

.nav-item {
  position: relative;
  padding: 0 12px;
  height: var(--banner-height);
  display: flex;
  align-items: center;
}

.nav-item > .nav-link {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-text);
  padding: 8px 4px;
  transition: color var(--transition);
  white-space: nowrap;
  cursor: pointer;
}

.nav-item:hover > .nav-link,
.nav-item.active > .nav-link {
  color: var(--color-accent);
}

/* ===== Dropdown Level 1 ===== */
.dropdown-l1 {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  min-width: 180px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 200;
}

.nav-item:hover > .dropdown-l1 {
  opacity: 1;
  visibility: visible;
}

.dropdown-l1 .dropdown-item {
  position: relative;
}

.dropdown-l1 .dropdown-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  font-size: 0.875rem;
  color: var(--color-text);
  transition: background var(--transition), color var(--transition);
  cursor: pointer;
  white-space: nowrap;
}

.dropdown-l1 .dropdown-link:hover {
  background: var(--color-off-white);
  color: var(--color-accent);
}

.dropdown-link .arrow-right {
  width: 12px;
  height: 12px;
  margin-left: 8px;
  opacity: 0.4;
}

/* ===== Dropdown Level 2 ===== */
.dropdown-l2 {
  position: absolute;
  top: 0;
  left: 100%;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  min-width: 200px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 210;
}

.dropdown-item:hover > .dropdown-l2 {
  opacity: 1;
  visibility: visible;
}

.dropdown-l2 .dropdown-link {
  padding: 10px 20px;
}

/* ===== Language Switcher ===== */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
  margin-left: auto;
}

.lang-btn {
  font-size: 0.8rem;
  color: var(--color-text-light);
  padding: 4px 6px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.lang-btn:hover {
  color: var(--color-accent);
}

.lang-btn.active {
  color: var(--color-accent);
  font-weight: 500;
}

.lang-sep {
  color: var(--color-text-muted);
  font-size: 0.75rem;
}

/* ===== Auth Button ===== */
.auth-user-area {
  position: relative;
  margin-left: 8px;
  flex-shrink: 0;
}

.btn-auth {
  font-size: 0.875rem;
  color: var(--color-primary);
  padding: 6px 16px;
  border: 1.5px solid var(--color-primary);
  border-radius: 20px;
  transition: all var(--transition);
  flex-shrink: 0;
}

.btn-auth:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-auth.logged-in {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-auth.logged-in:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

.auth-user-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  min-width: 150px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 6px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
  z-index: 260;
}

.auth-user-area.logged-in:hover .auth-user-menu,
.auth-user-area.logged-in.menu-open .auth-user-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.auth-user-menu-item {
  width: 100%;
  text-align: left;
  padding: 9px 14px;
  font-size: 0.86rem;
  color: var(--color-text);
  background: transparent;
  transition: background var(--transition), color var(--transition);
}

.auth-user-menu-item:hover {
  background: var(--color-off-white);
  color: var(--color-accent);
}

.auth-user-menu-item.logout {
  color: #2fa46f;
}

.auth-user-menu-item.logout:hover {
  color: #1f8b59;
}

/* ===== Hamburger ===== */
.hamburger-btn {
  display: none;
  color: var(--color-primary);
  padding: 6px;
  margin-left: 8px;
}